Squid-2.2.STABLE4: Async-IO queue info in cachemgr
   Show async-io queue length in cachemgr aio_counters

Index: squid/src/aiops.c
diff -u squid/src/aiops.c:1.1.1.16.2.4 squid/src/aiops.c:1.1.1.16.2.5
--- squid/src/aiops.c:1.1.1.16.2.4	Tue Jul 27 17:35:41 1999
+++ squid/src/aiops.c	Tue Jul 27 17:48:36 1999
@@ -873,6 +873,12 @@
     return aio_operations_pending();
 }
 
+int
+aio_get_queue_len(void)
+{
+    return request_queue_len;
+}
+
 static void
 aio_debug(aio_request_t * requestp)
 {
Index: squid/src/async_io.c
diff -u squid/src/async_io.c:1.1.1.11.2.1 squid/src/async_io.c:1.1.1.11.2.2
--- squid/src/async_io.c:1.1.1.11.2.1	Tue Jul 13 00:30:13 1999
+++ squid/src/async_io.c	Tue Jul 27 17:48:36 1999
@@ -367,6 +367,7 @@
     storeAppendPrintf(sentry, "stat\t%d\n", aio_counts.stat);
     storeAppendPrintf(sentry, "unlink\t%d\n", aio_counts.unlink);
     storeAppendPrintf(sentry, "check_callback\t%d\n", aio_counts.check_callback);
+    storeAppendPrintf(sentry, "queue\t%d\n", aio_get_queue_len());
 }
 
 /* Flush all pending I/O */
Index: squid/src/protos.h
diff -u squid/src/protos.h:1.1.1.42.2.4 squid/src/protos.h:1.1.1.42.2.5
--- squid/src/protos.h:1.1.1.42.2.4	Tue Jul 13 00:39:16 1999
+++ squid/src/protos.h	Tue Jul 27 17:48:37 1999
@@ -77,6 +77,7 @@
 extern int aio_operations_pending(void);
 extern int aio_overloaded(void);
 extern int aio_sync(void);
+extern int aio_get_queue_len(void);
 
 extern void aioCancel(int, void *);
 extern void aioOpen(const char *, int, mode_t, AIOCB *, void *, void *);